Search Results - "Rattez, Hadrien"

Weak phases production and heat generation control fault friction during seismic slip by Rattez, Hadrien, Veveakis, Manolis

“…The triggering and magnitude of earthquakes is determined by the friction evolution along faults. Experimental results have revealed a drastic decrease of the…”
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A Phase-Field Discrete Element Method to study chemo-mechanical coupling in granular materials by Sac-Morane, Alexandre, Veveakis, Manolis, Rattez, Hadrien

“…This paper presents an extension of the discrete element method using a phase-field formulation to incorporate grain shape and its evolution. The introduction…”
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The importance of Thermo-Hydro-Mechanical couplings and microstructure to strain localization in 3D continua with application to seismic faults. Part I: Theory and linear stability analysis by Rattez, Hadrien, Stefanou, Ioannis, Sulem, Jean

“…A Thermo-Hydro-Mechanical (THM) model for Cosserat continua is developed to explore the influence of frictional heating and thermal pore fluid pressurization…”
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Influence of cementation on the yield surface of rocks numerically determined from digital microstructures by Lesueur, Martin, Veveakis, Manolis, Rattez, Hadrien

“…Digital Rock Physics has reached a level of maturity on the characterisation of primary properties that depend on the microstructure – such as porosity,…”
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Frictional weakening of a granular sheared layer due to viscous rolling revealed by discrete element modeling by Sac-Morane, Alexandre, Veveakis, Manolis, Rattez, Hadrien

“…Considering a 3D sheared granular layer through a discrete element modeling, it is well known the rolling resistance influences the macro friction coefficient…”
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Morphometric description of strength and degradation in porous media by Guével, Alexandre, Rattez, Hadrien, Veveakis, E.

“…The influence of the microstructural geometry on the behavior of porous media is widely recognized, particularly in geomaterials, but also in biomaterials and…”
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Finite-volume coupled surface-subsurface flow modelling in earth dikes by Delpierre, Nathan, Rattez, Hadrien, Soares-Frazao, Sandra

“…Earthen embankments are subjected to increasing threats because of climate change inducing sequences of severe drought periods followed by floods, possibly…”
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The importance of Thermo-Hydro-Mechanical couplings and microstructure to strain localization in 3D continua with application to seismic faults. Part II: Numerical implementation and post-bifurcation analysis by Rattez, Hadrien, Stefanou, Ioannis, Sulem, Jean, Veveakis, Manolis, Poulet, Thomas

“…In this paper we study the phenomenon of localization of deformation in fault gouges during seismic slip. This process is of key importance to understand…”
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Strain localization regularization and patterns formation in rate-dependent plastic materials with multiphysics coupling by Jacquey, Antoine B., Rattez, Hadrien, Veveakis, Manolis

“…Not provided…”
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μCT scans permeability computation with an unfitted boundary method to improve coarsening accuracy by Lesueur, Martin, Rattez, Hadrien, Colomés, Oriol

“…Flow simulations on porous media, reconstructed from Micro-Computerised Tomography (μCT) scans, is becoming a common tool to compute the permeability of rocks…”
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Strain localization regularization and patterns formation in rate-dependent plastic materials with multiphysics coupling by Jacquey, Antoine B., Rattez, Hadrien, Veveakis, Manolis

“…Strain localization is an instability phenomenon occurring in deformable solid materials which undergo dissipative deformation mechanisms. Such instability is…”
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Numerical Analysis of Strain Localization in Rocks with Thermo-hydro-mechanical Couplings Using Cosserat Continuum by Rattez, Hadrien, Stefanou, Ioannis, Sulem, Jean, Veveakis, Manolis, Poulet, Thomas

“…A numerical model for thermo-hydro-mechanical strong couplings in an elasto-plastic Cosserat continuum is developed to explore the influence of frictional…”
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Mitigation of Nonuniform Settlement of Structures due to Seismic Liquefaction by Rasouli, Rouzbeh, Towhata, Ikuo, Rattez, Hadrien, Vonaesch, Rolf

“…AbstractLimited uniform settlement of a building subject to liquefaction may not affect the living conditions of the residents immediately after an earthquake…”
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On the Stability of Deep‐Seated Landslides. The Cases of Vaiont (Italy) and Shuping (Three Gorges Dam, China) by Seguí, Carolina, Rattez, Hadrien, Veveakis, Manolis

“…Deep‐seated landslides can have catastrophic impacts on human life and infrastructure when they suddenly fail. These events are devastating because of the…”
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Influence of dissolution on long-term frictional properties of carbonate fault gouge by Rattez, H., Disidoro, F., Sulem, J., Veveakis, M.

“…Velocity stepping experiments have been performed on a simulated calcite gouge using an annular shear apparatus to investigate the effect of dissolution on the…”
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Stress state evolution of a cemented granular material subjected to bond dissolution by Discrete Element Modeling by Sac-Morane, Alexandre, Rattez, Hadrien, Veveakis, Manolis

“…Rock weathering is a common phenomenon in most engineering applications, such as underground storage or geothermal energy. This work offers a discrete element…”
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Frictional weakening of a granular sheared layer due to viscous rolling revealed by Discrete Element Modeling by Sac-Morane, Alexandre, Veveakis, Manolis, Rattez, Hadrien

“…Considering a 3D sheared granular layer modeled with discrete elements, it is well known the rolling resistance significantly influences the mechanical…”
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A Phase-Field Discrete Element Method to study chemo-mechanical coupling in granular materials by Sac-Morane, Alexandre, Veveakis, Manolis, Rattez, Hadrien

“…This paper presents an extension of the discrete element method using a phase-field formulation to incorporate grain shape and its evolution. The introduction…”
Get full text

Morphometric description of strength and degradation in porous media by Guével, Alexandre, Rattez, Hadrien, Veveakis, Manolis

“…The influence of the microstructural geometry on the behavior of porous media is widely recognized, particularly in geomaterials, but also in biomaterials and…”
Get full text

Strain localization regularization and patterns formation in rate-dependent plastic materials with multiphysics coupling by Jacquey, Antoine B, Rattez, Hadrien, Veveakis, Manolis

“…Strain localization is an instability phenomenon occurring in deformable solid materials which undergo dissipative deformation mechanisms. Such instability is…”
Get full text